Spas or hot tubs are normally used year-round, unlike heated pools. Spas typically maintain water temperatures between100-104 F which require fast heating for better customer experience. Spa heating and pool-spa configurations generally involve how the water is heated and circulated between pool...

This is an agile project idea to compare DHW sizing tools to actual site data for (9) multifamily sites. A comparison of data for (6) sites was done in ET23SWG0012 GAHP Sizing, Screening and Design. An additional (9) sites would further refine this analysis to make observations which would be...

The goal of Phase 1 of this project is to develop a tool that provides integration guidelines for emerging gas-fired commercial heat pump water heaters (CHPWH) and baseline equipment (standard & high-efficiency, tankless & storage-type) to ensure: - Ideal system configuration and component sizing,...

The purpose of this study is to investigate the impacts on avoided gas cost calculations from increasing hydrogen and biogas content in pipeline quality natural gas. California EE programs must meet Total System Benefit (TSB) and Total Resource Cost (TRC) metrics. Underlying the calculation of...

Infrared drying of walnuts has demonstrated to significantly reduce drying Not Reviewed times (by 25-35%) and energy usage. This involves moisture-based sorting and IR pre-drying of walnuts, followed by conventional hot air drying. The scope of this agile project comprises of literature review of...

This project is a field study of a Gas Absorption Heat Pump (GAHP) water heater. The GAHP is a gas-fired technology with a technology readiness level (TRL) of 9. This project falls into phase 2F (field study phase) of a multi-phase field study pilot project for GAHP water heaters & combination...

This project will test and quantify the emissions improvements and potential efficiency gains for the next-generation ClearSign M1 Ultra-Low-NOx burner operating on natural gas in addition to up to 30% hydrogen fuel (by vol.) added to natural gas.The potential energy savings and CO2 emissions...

The previous GET Study ET25SWG0004 – CFS SME Interviews highlighted a subset of high-potential gas-fired CFS technologies currently lacking incentive coverage. This project will expand upon those findings through a second round of targeted SME interviews, this time engaging manufacturers,...

This study aims to provide additional system performance testing for a prototype dual fuel hybrid heat pump for the residential sector. Developed by a major OEM, this 120 V heat pump is equipped with a gas combustion burner to maximize efficiency and performance. This eliminates the need for...

There is a behavioral water and energy efficiency solution that will help reduce household carbon emissions and water use at scale. The device is an easy at home DIY retrofit to promote water conservation and improve shower habits. The technology automatically detects when a shower starts, and...